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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>活动规则</title>
    <link rel="stylesheet" href="cs.css">
</head>
<body>
    <span class="rule">活动规则</span>
    <span class="part">参与条件</span>
</body>
</html>